To repair Klipsch speakers, identify the specific problem, and fix it. The most common problems with speakers are oxidized or corroded lead wires, terminals and binding posts; deteriorated foam around the edge of the speaker cone; and torn or perforated cones. Loose connections and corrosion around wires, binding posts and other connection points are the most common problems associated with speakers and the deterioration of sound quality. Household dust, grime and humidity eventually build up and interfere with speaker performance.
Inspect the connection points and wires for corrosion, and clean oxidized wires by swirling them in a bowl containing a solution of vinegar and salt until bare, shiny metal appears. Immediately dip the wires in a second bowl containing a solution of sodium bicarbonate and water to neutralize the acidic effects of the vinegar. Clean binding posts and terminals with a contact cleaner and non-abrasive polishing cloth. Gently polish the terminals, and remove any excess cleaner with cotton swabs or natural fiber pipe cleaners.
Other common problems with Klipsch speakers involve the deterioration or dry rot of the foam surrounds that allow the drivers to vibrate and perforations or tears in the cones or diaphragms. You can purchase repair kits to replace the foam, but this repair requires skill and patience. If you aren't uncomfortable performing this type of repair, find an authorized repair center from the Klipsch company website, and contact them for a price quote. The company usually warranties its work, and this may be a more economical alternative.